18199848 has 32 divisors (see below), whose sum is σ = 46274400. Its totient is φ = 5963328.

The previous prime is 18199847. The next prime is 18199861. The reversal of 18199848 is 84899181.

It is a junction number, because it is equal to n+sod(n) for n = 18199797 and 18199806.

It is not an unprimeable number, because it can be changed into a prime (18199847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5011 + ... + 7842.

It is an arithmetic number, because the mean of its divisors is an integer number (1446075).

Almost surely, 2^18199848 is an apocalyptic number.

It is an amenable number.

18199848 is an abundant number, since it is smaller than the sum of its proper divisors (28074552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18199848 is a wasteful number, since it uses less digits than its factorization.

18199848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12921 (or 12917 counting only the distinct ones).

The product of its digits is 165888, while the sum is 48.

The square root of 18199848 is about 4266.1279868283. The cubic root of 18199848 is about 263.0404791506.

The spelling of 18199848 in words is "eighteen million, one hundred ninety-nine thousand, eight hundred forty-eight".